Field help (BUCNBR)

The requirement calculation groups requirements by period and generates purchase or production suggestions for each requirement.

Material Requirements Planning (MRP) calculation periods are known as "buckets". Buckets can be defined in days, weeks and months. The grouping matches the division of the proposals from the calculation.

 You are advised to use the same division as defined in the scheduling parameters.

It is possible to perform a requirement calculation with one or many period types (but always in the following order: days, weeks, months).

The division into periods can be performed over a horizon of 2000 days (just over 5 years), and for a maximum of 1000 periods.

Depending on the calculation start date, the number of periods will automatically be adjusted so that "week" type periods start on the first day of the week and "month" type periods cover an entire month with a possible week's overlap.

For example, a grouping of 30 days / 4 weeks / 12 months will be expressed as:

• A grouping in days during the first 30 days;
• A grouping by week after the first 30 days and for the following 4 weeks;
• A grouping in months after the 30 days and 4 weeks for the following 12 months.